Home / 85,202.78-117,588.58-51,222.33

Finding the Fourth Proportional to 85,202.78, 117,588.58 and 51,222.33

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Solution

The fourth proportional to 85,202.78, 117,588.58 and 51,222.33 is: 70,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202.78 : 117,588.58 = 51,222.33 : x
  2. Step 2: Convert to fraction form
    85,202.78/117,588.58 = 51,222.33/x
  3. Step 3: Cross multiply
    85,202.78x = 117,588.58 × 51,222.33
  4. Step 4: Simplify right side
    85,202.78x = 6,023,160,920.94
  5. Step 5: Solve for x
    x = 6,023,160,920.94/85,202.78
  6. Step 6: Final answer
    x = 70,692.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.